First, I realize that the amp you see a pro musician (or at least the big names) using may or may not be 100% their 1st choice. After all, if they get it for free - or for an endorsement - who can blame them. Over the past few months, I've tivo'd many of these shows and I'd say an easy 80%+ of the bass players play the Ampeg 810 cab with the VST Classic head. There have been a few exceptions, but even then, they will frequently use the 810 cabinet and a different Ampeg head - or in one case (George Reeves) an Ashdown EVO 500. I'm thinking either 1) Ampeg is by far the #1 choice of these guys (and many are not necessarily big enough names to get free gear) or 2) the show has one sitting around and hey, it's easier to use that than to lug in whatever is in the truck - and it's not like the SVT is a bad choice. Anybody have any first hand experience with this? It's not a big deal, just something I am curious about.